Sheet-metal nut and method of making the same.



A. H. MOORE. SHEET METAL NUT AND METHOD OF MAKING THE SAME.

APPLICATION FILED FEB. 7, 1913.

1 088 437 Patented Feb. 2 4, 191i 5; r! iii QIIIIIIIIIIIIIIIII/IIIIIIII/IIIIIIIII 'l/l/I/I/IIIIII,III1/II/I/I/IIIIIIIIIIIIIIII/ W/TNESSES; 11v VENTOR.

ATTORNEYS:

I nonsense.

pnrrnin spawns r n ARTHUR H. MOORE, OF JBRIDGJ EJPORT, CONNECTICUT, ASIGNOR T FRIDGEPORT COMPANY, OF"BRIDG1EPORT, CONNECTICUT, A CORPORATION OF CONNEGTEEO'UE.

snnn'r-Mn'ran nor .nnn ilrnrnon on MAKING. THE sauna.

Specification of Letters Patent.

To'all whom it may concern:

. Be it known that l, ARTHUR H. llllooms, a citizen of the United States, residing in Bridgeport, county of Fairfield, and State. of Connecticut, have invented certain new' and useful Improvements in Sheet-Metal Nuts and Methods of Making the Same, of which the following is a full, clear, and exact description.

One of the primary objects of the present invention is to provide a simple, inexpensive form of sheet metal nut particularly adapted for pipe couplings, and more especially designed foruse on spuds such as commdnly employed in connecting a water closet bowl with the flushing tank.

Another object of the invention is to providean improved and simplified method by which nuts. of this type inay be manufactured.

To these and other ends, the invention consists in the novel features to be hereinafter described and claimed.

In the accompanying drawing, Figure 1 is a side elevation of a nut constructed. in

accordance with my invention, Fig. '2 is an axial section of the same, Fig. 3' is abottom plan view of Fig. 1, and Figs. 4 to 9 inclusive, show different stages in the process of manufacture, Fig. 7 being a bottom plan viewof Fig. 6.; a

Referring to the drawing, the improved nut comprises a' sheet metal body portion 10 which is polygonal in outer configuration. At one end -'of the body 10 an integral outturned flange {U1 is provided, and at the opposite end a. cylindrical wall 12 extends integrally from the body 10 in a direction 1 axially of the nut e. at right angles to the flange 11. Referripg to Figs. '1 and 2, it will be noted that the wall '12 forms a down.- ward continuation of the body 11, and that .its exterior diameter'ais about the same or slightly less than the minimum exterior diameter of the body 10. The inner surface .of the cylindrical wall 12fis provided with interior screwthreads 13. if a The shape of the body 10:"provides ani effective grip for the wrench, and by preer- "as shown so that the wall 12 and body ence the body will have at least eight ,si es,

will merge. into each other-quite gradually.

By having the outer surface of the wall 12 Patented Feb. 2a, 19141. Application filed. February 7, 1913. Serial No. 746,816.

a flat, circular blank 14 of sheet metal (Fig.

4) and cup the central portion thereof in polygonal form, as shown in Fig. 5, the diameterof the cup being less than the diameter of the blank sons to provide the flange 11 on the periphery of the polygonal cup. The cup is then stamped to sharpen the polygonal form of the same and accentuate the angles thereof, as shown in Figs. 6 and 7, after which the bottom of the cup is pierced with a central circular opening or aperture 15 (Fig. 8) forming an inwardly directed flange 16 around the bottom of the cup. The flange 16 isthen turned or bent downward by, suitable tools to present the cylindrica-lwall 12,- as'shown in Fig. 9. The wall 12 is then provided with interior screw threads 13, and the construction-of the nut is complete. t

In making the nut, it is not always necessary to pierce the opening 15 after the cup has been formed, as said opening may be made prior to or during the cupping operation.

The improved nut herein described may be very easily and inexpensively manufactured. Very little stock is required and the several manufacturing operations can be readily carried out with imple tools. The nut itself, while of little bulk and weight, is sufficiently strong for the intended purposes and gives very efficient, durable service at a remarkably low cost.

I do not claim broadly a sheet metal nut consisting of a polygonal body having an integraloutturned flange at one end and a cylindrical Wall integral with said body-at the other end and provided with screw threads; nor do I claim broadly the method of making an outwardly flanged nut which comprises cupping the central port-ion of a disk like blank into polygonal form, pierc ing the blank so that an opening will be formed in the bottom of the cup, and turningthe edge of said opening in a direction axially of the blank. What I claim is: r 1. The method of making an outwardly flanged sheet metal nut, which comprises cupp ng in polygonal form the central poraxially of the blank, and threading the interior surface of such cylindrical wall; substantially as described.

2. As an article of I comprising a sheet metal polygonal body,

' an outturned flange integral with said body at one end, and a cylindrical wall integral with said body at the other end and extending away from said body in aidirection to increasethe axial dimension of the nut; the inner surface of said cylindrical 'wallbeing threaded; substantially as described;

manufacture, a nut ameter of said polygonal body; substantially I as described.

4. As an article of manufacture, a nut comprising a hollow octagonal body of sheet metal, a flange integral with said body,'and

a cylindrical wall integral with said body' and extending therefrom in a direction to increase the axial dimension of the nut, said cylindrical wall being interiorly threaded and having an external diameter approximately equal to the minimum exterior diameter of said octagonal body; substantially as described. I

In witnesswhereof, I have hereunto set my hand on the th day of January, 1913.

I ARTHUR H. MOORE.

Witnessesz' L. M. ALLEN,

HERBERT BIRDsEYn. 

